USB modem



FIG. 1 is a top view of a USB modem;

FIG. 2 is a back view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a front view thereof;

FIG. 7 is a front perspective view thereof;

FIG. 8 is a front view in an opened state; and,

FIG. 9 is a front perspective view thereof. 

CLAIM The ornamental design for a USB modem, as shown and described. 